Hand-shears.



- l PATENT-EDAPB. 14, 1 908. A. NICHOLSON & I. T. RUDE,

HAND SHBARS. APPLICATION FILED JULY 20.1907

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ALEXANDER NICHOLSON AND INGWALD '1. RUDE, OF CHICAGO, ILLINOIS.

HAND-SHEARS.

Specification of Letters Patent.

Application filed July 20, 1907.

Patented April 14, 1908.

Serial No. 384,772.

To all whom it may concern:

Be it known that we, ALEXANDER NICHOL- SON and INGWALD T. RUDE, citizensof the United States, residing at Chicago, in the county of Cook andState of Illinois, have invented a new and useful Improvement inHand-Shears, of which the following is a specification.

The object of our inventionis to provide a pair of hand shears forcutting sheet metal and other material by which a much greater thicknessof material can be cut by the same or by less pressure than is appliedby hand to the ordinary shears of the same size, and thus enlarge therange of usefulness of this class of shears.

The manner in which We accomplish our object is described in thefollowing specifica tions and illustrated in the accompanying drawingsin Which:

Figure 1 is a vertical elevation, the solid lines showing the parts inthe closed position and the dotted figure showing the parts in the openposition. The handles being broken 0H, the thumb and finger loo s notbeing shown. Fig. 2 is a section on t e line 22 Fig. 1.

In the drawings A indicates the lower and B the upper jaws of the shearswhich are secured together by the pivot bolt C in the ordinary way. Fromthis pivoted point the cutting part of the jaws are of the usualconstruction, but the rear ends D are quite short and cross each otherat an angle with the line of the cutting edges E. Each of these ends haspivot holes for the pivot bolts F. The handles G are parallel when theshears are closed, but the ends H cross each other at an angle with theparallel lines of the main parts of the handles. These ends H areflattened and pivotally secured together by the pivot bolt I. The ends Jare shouldered and have pivot holes and are thereby adapted to fitoutside the ends D of the jaws and to be pivotally secured thereto bythe pivots F. All the pivot holes K are recessed at L, as shown in Fig.2, for the heads and nuts of the olts.

The pivotal connection of the handles with the jaws herein described inthe drawings forms a toggle joint of great power.

What We claim and seek to secure by Letters Patent is:

A pair of hand shears consisting of a pair of cutting members pivotallysecured together, the rear ends of said members forming vertical angleswith the cutting edges thereof, said ends crossing each other and havinga pivot hole, and a pair of handles pivotally secured together near theends thereof, said ends forming vertical angles to the parallel lines ofsaid handles, said ends crossing each other and having pivot holescorresponding with said pivot holes in said cutting members and beingshouldered to fit the outside of said members and thereby adapted to bepivotally connected thereto; and pivot bolts extending through saidholes in said members and handles whereby said handles and members arepivotally secured together as described.

' ALEXANDER NICHOLSON.

INGWALD T. RUDE. Witnesses:

THOMAS J. MORGAN, JOSEPH STAAB.

